ATE122916T1 - METHOD FOR REDUCING NITROGEN OXIDES AND MINIMIZING THE PRODUCTIVENESS OF OTHER IMPURITIES. - Google Patents

METHOD FOR REDUCING NITROGEN OXIDES AND MINIMIZING THE PRODUCTIVENESS OF OTHER IMPURITIES.

Info

Publication number
ATE122916T1
ATE122916T1 AT88908886T AT88908886T ATE122916T1 AT E122916 T1 ATE122916 T1 AT E122916T1 AT 88908886 T AT88908886 T AT 88908886T AT 88908886 T AT88908886 T AT 88908886T AT E122916 T1 ATE122916 T1 AT E122916T1
Authority
AT
Austria
Prior art keywords
nitrogen oxides
minimizing
productiveness
impurities
effluent
Prior art date
Application number
AT88908886T
Other languages
German (de)
Inventor
William Robert Epperly
James Christopher Sullivan
Barry Normand Sprague
John Henry O'leary
Original Assignee
Fuel Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27557600&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE122916(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US07/100,128 external-priority patent/US4863705A/en
Priority claimed from US07/108,779 external-priority patent/US4844878A/en
Priority claimed from US07/132,801 external-priority patent/US4830839A/en
Priority claimed from US07/155,864 external-priority patent/US4877590A/en
Priority claimed from US07/207,382 external-priority patent/US4902488A/en
Priority claimed from US07/207,292 external-priority patent/US4863704A/en
Application filed by Fuel Tech Inc filed Critical Fuel Tech Inc
Application granted granted Critical
Publication of ATE122916T1 publication Critical patent/ATE122916T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00058—Temperature measurement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Liquid Crystal Substances (AREA)
  • Chimneys And Flues (AREA)

Abstract

A process for the reduction of nitrogen oxides in an effluent from the combustion of a carbonaceous fuel while minimizing the production of other pollutants is presented. The process comprises introducing (most commonly by injecting) a nitrogen oxides reducing treatment agent into an effluent according to a nitrogen oxides reducing treatment regimen under conditions such that the treatment agent is operating on the high temperature or right side of its nitrogen oxides reduction versus effluent temperature curve, especially on the high temperature or right side of the curve plateau.
AT88908886T 1987-09-23 1988-08-12 METHOD FOR REDUCING NITROGEN OXIDES AND MINIMIZING THE PRODUCTIVENESS OF OTHER IMPURITIES. ATE122916T1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US07/100,128 US4863705A (en) 1987-09-23 1987-09-23 Process for the reduction of nitrogen oxides in an effluent
US07/108,779 US4844878A (en) 1985-10-04 1987-10-14 Process for the reduction of nitrogen oxides in an effluent
US07/132,801 US4830839A (en) 1987-02-13 1987-12-14 Ammonia scrubbing
US07/155,864 US4877590A (en) 1987-03-06 1988-02-29 Process for nitrogen oxides reduction with minimization of the production of other pollutants
US07/207,382 US4902488A (en) 1987-05-14 1988-06-15 Process for nitrogen oxides reduction with minimization of the production of other pollutants
US07/207,292 US4863704A (en) 1987-03-06 1988-06-15 Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt

Publications (1)

Publication Number Publication Date
ATE122916T1 true ATE122916T1 (en) 1995-06-15

Family

ID=27557600

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88908886T ATE122916T1 (en) 1987-09-23 1988-08-12 METHOD FOR REDUCING NITROGEN OXIDES AND MINIMIZING THE PRODUCTIVENESS OF OTHER IMPURITIES.

Country Status (8)

Country Link
EP (2) EP0354220B1 (en)
JP (2) JPH02501284A (en)
AT (1) ATE122916T1 (en)
AU (1) AU617708B2 (en)
DE (1) DE3853881T2 (en)
DK (1) DK250489A (en)
FI (1) FI892467A7 (en)
WO (1) WO1989002781A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5342592A (en) * 1989-07-04 1994-08-30 Fuel Tech Europe Ltd. Lance-type injection apparatus for introducing chemical agents into flue gases
US5262138A (en) * 1989-08-31 1993-11-16 Union Oil Company Of California Process for NOx abatement
WO1991003294A1 (en) * 1989-08-31 1991-03-21 Union Oil Company Of California Process for the abatement of nitrogen oxides
US4997631A (en) * 1990-03-07 1991-03-05 Fuel Tech, Inc. Process for reducing nitrogen oxides without generating nitrous oxide
DE69120812T2 (en) * 1990-05-21 1997-02-27 Nalco Fuel Tech Gmbh METHOD FOR MINIMIZING THE CONCENTRATION OF POLLUTANTS IN COMBUSTION GASES
JP2602769B2 (en) * 1993-04-22 1997-04-23 東洋機械金属株式会社 High-speed chemical degreasing furnace
US5498707A (en) * 1993-04-22 1996-03-12 Gatlin; Larry W. Hydrogen sulfide converter
KR20010013988A (en) * 1998-04-20 2001-02-26 고지마 아끼로, 오가와 다이스께 METHOD OF REDUCING NOx
DE10021517C1 (en) * 2000-05-03 2002-01-10 Kuelps Heinz Juergen Process for reducing high temperature halogen corrosion e.g. in waste combustion plants comprises introducing solutions, dispersions or suspensions containing compounds of iron, silicon
FR2912932B1 (en) * 2007-02-23 2011-06-10 Total France AQUEOUS SOLUTION FOR THE TREATMENT OF EXHAUST GASES FROM DIESEL ENGINES
DE102011105419B4 (en) * 2011-06-09 2015-04-16 Mehldau & Steinfath Umwelttechnik Gmbh Process for the reduction of nitrogen oxides

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188190A (en) * 1976-03-23 1980-02-12 Kurashiki Boseki Kabushiki Kaisha Input control method and means for nitrogen oxide removal means
JPS5372773A (en) * 1976-12-10 1978-06-28 Hitachi Ltd Direct reductive denitration method of ammonia

Also Published As

Publication number Publication date
AU2535888A (en) 1989-04-18
JPH02501715A (en) 1990-06-14
FI892467A0 (en) 1989-05-22
JPH02501284A (en) 1990-05-10
DE3853881T2 (en) 1995-11-23
DK250489D0 (en) 1989-05-23
EP0354220A1 (en) 1990-02-14
EP0333836A1 (en) 1989-09-27
EP0333836B1 (en) 1995-05-24
AU617708B2 (en) 1991-12-05
WO1989002781A2 (en) 1989-04-06
DK250489A (en) 1989-05-23
FI892467A7 (en) 1989-05-22
DE3853881D1 (en) 1995-06-29
WO1989002781A3 (en) 1989-06-01
EP0354220B1 (en) 1993-04-21

Similar Documents

Publication Publication Date Title
DE3852747D1 (en) METHOD FOR REDUCING NITROGEN OXIDE AND MINIMIZING THE PRODUCTION OF OTHER POLLUTANTS.
DE3852801D1 (en) MULTI-STAGE METHOD FOR REDUCING THE CONCENTRATION OF POLLUTANTS IN EXHAUST GASES.
EP0318808A3 (en) Process for reducing emissions of sulfur oxides and composition useful in same
DE69033314D1 (en) COMBINED SNCR AND SCR METHOD FOR REDUCING NITROGEN OXYDE
DE3853881D1 (en) METHOD FOR REDUCING NITROGEN OXIDES AND MINIMIZING THE PRODUCTS OF OTHER POLLUTIONS.
MX166067B (en) PROCEDURE FOR THE REDUCTION OF THE CONCENTRATION OF NITROGEN OXIDES IN THE EFFLUENT OF THE COMBUSTION OF A CARBONACEOUS FUEL
AU4055089A (en) Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt
WO1989002780A3 (en) Multi-stage process for reducing the concentration of pollutants in an effluent
GB2225001A (en) Process for nitrogen oxices reduction with minimization of the production of other pollutants
JPS51149190A (en) Lized asbestos with reducing power and process for its production
JPS5277877A (en) Method for reducing concentration of nitrogen oxides in flowage combus tion gases
JPS5216472A (en) Nox reducing agent feeding process and waste gas treatment process
ES2006354A6 (en) Procedure to reduce the concentration of nitrogen oxides in an effluent of the combustión of a carbonaceous fuel. (Machine-translation by Google Translate, not legally binding)
JPS528983A (en) Process for treatment of nitrogen oxides in exhaust gases
JPS51136593A (en) Process for purifying sulfur slag

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties